Sirius FM-5

Sirius FM-5, also known as Radiosat 5, is an American communications satellite which is operated by Sirius XM Radio. It was constructed by Space Systems Loral, based on the LS-1300 bus, and carries a single transponder designed to transmit in the NATO E, F and I bands (IEEE S and X bands). It is currently being used to provide satellite radio broadcasting to North America.

Sirius FM-5
Mission typeCommunication
OperatorSirius XM Radio
COSPAR ID2009-034A
SATCAT no.35493
Mission duration15 years
Spacecraft properties
BusLS-1300
ManufacturerSpace Systems Loral
Launch mass5,820 kilograms (12,830 lb)
Start of mission
Launch date30 June 2009, 19:10:00 (2009-06-30UTC19:10Z) UTC
RocketProton-M/Briz-M
Launch siteBaikonur 200/39
ContractorILS
Orbital parameters
Reference systemGeocentric
RegimeGeostationary
Longitude86.2° west
Perigee altitude35,784 kilometers (22,235 mi)
Apogee altitude35,801 kilometers (22,246 mi)
Inclination0.01 degrees
Period24 hours
EpochJanuary 21, 2014, 08:13:09 UTC[1]
Transponders
Band1 E/F/I-band
Coverage areaNorth America
 

Sirius FM-5 was launched by a Proton-M/Briz-M rocket flying from Site 200/39 at the Baikonur Cosmodrome. The launch was conducted by International Launch Services, and occurred at 19:10 GMT on 30 June 2009. Around nine hours after launch, the satellite separated from the carrier rocket into a geosynchronous transfer orbit. It will raise itself into geostationary orbit by means of its onboard R-4D apogee motor. It also carries four SPT-100 engines for manoeuvring.

It is the first Sirius Radio satellite to be placed in geostationary orbit; the three previous Sirius satellites operate in tundra orbits (and the fourth satellite, Sirius FM-4, was a ground spare that was never launched into space). Originally placed at 96° west, it was moved to 86.2° west alongside XM-5.[2]

Animation of Sirius's orbit
Around the Earth
Earth fixed frame - Equatorial view
Earth fixed frame - Polar view
  Earth ·   Sirius FM-5 ·   Sirius FM-1  ·   Sirius FM-2  ·   Sirius FM-3

See also

References

  1. "SIRIUS FM-5 Satellite details 2009-034A NORAD 35493". N2YO. January 21, 2014. Retrieved January 21, 2014.
  2. https://www.lyngsat.com/Sirius-FM-5.html Sirius FM-5 at Lyngsat.com

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